
Type d
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards

LPF 434MHz is an open-source printed circuit board by ElectroIGO, from the ElectroIGO/LPF_434MHz_IRBE repository on GitHub. It is a 2-layer board of 37.7 × 7.3 mm with 14 parts on 10 nets, routed with 35 tracks and 12 vias.
Its parts include 8 inductors, 4 capacitors and 2 connectors.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 4.7 nH | Inductor_SMD:L_0603_1608Metric | L3, L5, L6 |
| 2 | 0.3 pF | Capacitor_SMD:C_0603_1608Metric | C1, C5 |
| 2 | 1.6 nH | Inductor_SMD:L_0603_1608Metric | L4, L7 |
| 2 | 18 nH | Inductor_SMD:L_0603_1608Metric | L1, L8 |
| 2 | 4.7 pF | Capacitor_SMD:C_0603_1608Metric | C2, C4 |
| 1 | 39 nH | Inductor_SMD:L_0603_1608Metric | L2 |
| 1 | RF_IN | sma_china:SMA_CHINA | J1 |
| 1 | RF_OUT | sma_china:SMA_CHINA | J2 |

google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards


hackclub/OnBoard
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Twotoz/C5VRX
Ultra-minimal, zero-CPU 5.8 GHz analog FPV video receiver using ESP32-C5 Wi-Fi 6 PHY MODEM_DIAG, BitScrambler WBFM demodulation & resistor DAC CVBS


It measures 37.7 × 7.3 mm and has 2 copper layers, 1.6 mm thick.
14 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the ElectroIGO/LPF_434MHz_IRBE repository on GitHub, at the commit this page was made from: the board is LPF_434MHz.kicad_pcb and its schematic LPF_434MHz.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask ElectroIGO before reusing the design.